Electrolyte-gated organic transistors (EGOTs) are promising and versatile devices for next-generation biosensors, neuromorphic systems, and low-voltage electronics. They are particularly indicated for applications where stable operation in aqueous environment and cost-effective manufacturing are required. Indeed, EGOTs can be fabricated through low-cost, large area, and scalable techniques, such as printing, from a large portfolio of solution processable organic materials, which are often able to stably operate in water or physiological solutions. Despite a large number of solution processable EGOTs have been reported in the literature so far, only a few are based on printed semiconductors, with no examples of digitally printed, i.e., inkjet printed, n-type devices, which would easily enable complementary architectures. In this work, we propose the first example of a n-type electrolyte gated organic transistor based on an inkjet printed polymer. The proposed device shows a high stability when operated in water and requires only 3 hours of conditioning to produce a stable response, a much faster dynamic than in the case of printed polymers currently tested for p-type EGOTs. As a proof-of-concept, the proposed printed n-type EGOT is successfully integrated with a printed single-walled carbon-nanotubes based p-type device in a logic inverter, demonstrating the possibility to build simple water-gated digital electronic circuits.

中文翻译：

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基于印刷聚合物的 n 型、稳定的电解质门控有机晶体管

电解质门控有机晶体管 (EGOT) 是用于下一代生物传感器、神经形态系统和低压电子设备的有前途的多功能设备。它们特别适用于需要在水性环境中稳定运行和具有成本效益的制造的应用。事实上，EGOT 可以通过低成本、大面积和可扩展的技术（例如印刷）从大量可溶液处理的有机材料组合中制造，这些材料通常能够在水或生理溶液中稳定运行。尽管迄今为止在文献中已经报道了大量可溶液处理的 EGOT，但只有少数基于印刷半导体，没有数字印刷（即喷墨印刷）n 型器件的例子，这很容易实现互补架构。在这项工作中，我们提出了第一个基于喷墨印刷聚合物的 n 型电解质门控有机晶体管的例子。所提出的装置在水中运行时表现出高稳定性，仅需要 3 小时的调节即可产生稳定的响应，动态速度比目前针对 p 型 EGOT 测试的印刷聚合物要快得多。作为概念验证，所提出的印刷 n 型 EGOT 成功地与基于印刷单壁碳纳米管的 p 型器件集成在逻辑反相器中，展示了构建简单水门控数字电子电路的可能性。比目前为 p 型 EGOT 测试的印刷聚合物的情况快得多。作为概念验证，所提出的印刷 n 型 EGOT 成功地与基于印刷单壁碳纳米管的 p 型器件集成在逻辑反相器中，展示了构建简单水门控数字电子电路的可能性。比目前为 p 型 EGOT 测试的印刷聚合物的情况快得多。作为概念验证，所提出的印刷 n 型 EGOT 成功地与基于印刷单壁碳纳米管的 p 型器件集成在逻辑反相器中，展示了构建简单水门控数字电子电路的可能性。